The thread doesn't really have many changes being reported. Most people are on the look out for the Caffeine index going live across all or more data centers. However, we have not really seen that happent yet. Maybe it will later this month, but as of now, there are not signs that Caffeine is live on a larger scale than the single data center. There are some discussions of normal flux and changes in the SERPs, that coincided with the New Years PageRank update, but not are all on the same page about that.

In any event, here are the key changes over the past month at Google, since our last report: